Zero Retries Index 2025

Index of Zero Retries Issues and stories published in 2025

For PDF versions of Zero Retries, see the
Zero Retries newsletter collection on Digital Library of Amateur Radio & Communications (DLARC) on the Internet Archive.

For indexes of other years, see Zero Retries Indexes.

Links below skip ahead to each month on this page with the table of contents for each issue.

January 2025

• Zero Retries 0184 - 2025-01-10

• Zero Retries 0185 - 2025-01-17

• Zero Retries 0186 - 2025-01-24

• Zero Retries 0187 - 2025-01-31

February 2025

• Zero Retries 0188 - 2025-02-07

• Zero Retries 0189 - 2025-02-14

• Zero Retries 0190 - 2025-02-21

• Zero Retries 0191 - 2025-02-28

March 2025

• Zero Retries 0192 - 2025-03-07

• Zero Retries 0193 - 2025-03-14

• Zero Retries 0194 - 2025-03-21

• Zero Retries 0195 - 2025-03-28

April 2025

• Zero Retries 0196 - 2025-04-04

• Zero Retries 0197 - 2025-04-12

• Zero Retries 0198 - 2025-04-18

• Zero Retries 0199 - 2025-04-25

May 2025

• Zero Retries 0200 - 2025-05-02

• Zero Retries 0201 - 2025-05-09

• Zero Retries 0202 - 2025-05-16

• Zero Retries 0203 - 2025-05-23

• Zero Retries 0204 - 2025-05-30

June 2025

• Zero Retries 0205 - 2025-06-06

• Zero Retries 0206 - 2025-06-13

• Zero Retries 0207 - 2025-06-20

• Zero Retries 0208 - 2025-06-27

July 2025

• Zero Retries 0209 - 2025-07-04

• Zero Retries 0210 - 2025-07-11

• Zero Retries 0211 - 2025-07-18

• Zero Retries 0212 - 2025-07-25

August 2025

• Zero Retries 0213 - 2025-08-01

• Zero Retries 0214 - 2025-08-08

• Zero Retries 0215 - 2025-08-15

• Zero Retries 0216 - 2025-08-22

• Zero Retries 0217 - 2025-08-29

September 2025

• Zero Retries 0218 - 2025-09-05

• Zero Retries 0219 - 2025-09-12

• Zero Retries 0220 - 2025-09-19

• Zero Retries 0221 - 2025-09-26

October 2025

• Zero Retries 0222 - 2025-10-03

• Zero Retries 0223 - 2025-10-10

• Zero Retries 0224 - 2025-10-17

• Zero Retries 0225 - 2025-10-25

• Zero Retries 0226 - 2025-10-31

November 2025

• Zero Retries 0227 - 2025-11-07

• Zero Retries 0228 - 2025-11-14

• Zero Retries 0229 - 2025-11-21

• Zero Retries 0230 - 2025-11-28

December 2025

• Zero Retries 0231 - 2025-12-05

• Zero Retries 0232 - 2025-12-12

• Zero Retries 0233 - 2025-12-31

---

---

January 2025

Zero Retries 0184 - 2025-01-10

Request To Send

• Paid Subscribers Update

• 2400+ Email Subscribers to Zero Retries!

• Transition from Substack to Ghost - Still in Progress

• Intended Attendance at 2025 Amateur Radio Conferences

• Neat Hack for Amateur Radio Email Lists Overloading One’s Inbox

• Big Project In The Works

• Regarding the FreeDV HF Digital Voice Mode…

What’s New at Digital Library of Amateur Radio & Communications — January 2025

ZR > BEACON

• HF Signals zBitx - The 5 watts, all bands, all mode SDR in your pocket for $149

• SignalSDR Pro - $900 Software Defined Transceiver with 2 TX and 2 RX

• KV4P-HT v2 Kit Available from Halibut Electronics

• Kenwood 222-225 MHz Radios and Repeaters

• New M17 Foundation Wiki

• Announcing the DRATS2 Project

• The Hard Truth about Hardware TNCs in Packet Radio

• Examining Ambiguities in the Automatic Packet Reporting System

• Followup to Zero Retries Mention of TEXNET - GLnet (Great Lakes Network)

• New Version of APRSdroid (and a 15th Anniversary)

• FreeDV [Project is Seeking] New Project Leadership Team Members

• M17 is my 2025 Resolution. Join me.

• Is VarAC Legal? Is it Even Desirable?

• Successful Tests with Rattlegram - Dec 2024

• Getting Started With ka9q-radio Video Series

• Bald Yak Education Series (on GNU Radio)

• GNU Radio - What to Look Forward to in 2025

• wsjtx_improved - A Fork of WSJT-X

• New Developments in Personal Compute Capabilities - Opposite Ends

• Feedback on SuperPeater from the Perspective of AllStarLink

Join the Fun on Amateur Radio

Closing The Channel

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0185 - 2025-01-17

Request To Send

• Paid Subscribers Update

• Upcoming Events Countdown

• Store & Forward Podcast Episode 10

• My Three Stages of… Writing

• SuperPeater Part 4 in Work

• Future Project - A Directory of the Best Archival Packet Radio Material

• Every Project Needs…

Introduction to the IP400 Project - VE6VH

Introduction to the IP400 Project - N8GNJ

Background and Details on the IP400 Project

• IP400 is Inspired by and Interoperable with AREDN

• General Goals of the IP400 Project

• Ambitious Goals and Requirements of IP400

• Sponsoring Organization - Alberta Digital Radio Communications Society (ADRCS)

• Help Needed / Development / Coordination

• Resources / Further Information on IP400

• First Public In-Person Demonstration - Pacificon 2025

• Future Installments on IP400

Imagining an HF Appliance Based on the zBitx

ZR > BEACON

• Computing Across America Serialization (Newsletter)

• Vanishing Culture: Digital Library of Amateur Radio and Communications

• Project MINI RACK

• Forgotten Internet: UUCP

• APRS is NOT “Worthless”

Join the Fun on Amateur Radio

Closing The Channel

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0186 - 2025-01-24

Request To Send

• Paid Subscribers Update

• Upcoming Events Countdown

• Personal Perspective about my Enthusiasm for the IP400 Network Project

• New Zero Retries Boilerplate Page

• Canadian Innovation in Amateur Radio Data Communications

• In Search of AMRAD Members (Current and Former)

• Thought Experiment - Integrating Personal Radio Science Projects

• Thought Experiment - Adaptive Repeater Behavior During VHF / UHF Extended Propagation

• Recent Presentation - Tracking Technological Innovation in Amateur Radio - Zero Retries Newsletter

Brief Update on the IP400 Network Project

IP400 Network Project Frequently Asked Questions v1.0

ZR > BEACON

• M17 texting with a Nokia 3310

• Tweets from Space

• CaribouLite SDR HAT for SDR on a Raspberry Pi

Zero Retries Boilerplate

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0187 - 2025-01-31

Request To Send

• Paid Subscribers Update

• There’s No One Best Amateur Radio Data Technology

• Thought Experiment on Citizen Science - Monitor GNSS “Wobble”

Roadmap for the IP400 Network Project
Martin Alcock VE6VH

The Necessity of Techsplaining About Innovating Mostly In Software
Steve Stroh N8GNJ

Trends I Hope to See in 2025 (and Beyond) - Part 1
Steve Stroh N8GNJ

• Completion of FCC Docket 16-239

• 44Net VPN Becomes Widely Available

• Basic Mobile Data Radio from China

• Progress on M17 Project with the backing of the new M17 Foundation

• Progress on new initiatives for APRS with the backing of the APRS Foundation

• New variants of New Packet Radio and expanded usage of NPR

• Increased recognition and use of ka9q-radio as an all channel receiver

• The debut of the Kenwood “TM-D720GA”

• VARA FM continues to be the most robust, fastest data mode…

• zBitx - More Casual HF Operation Outdoors… and more General Operators

• Amateur Digital Television Receiving Increases

• Raspberry Pi 5 Family Makes a Difference

• Progress on a Amateur Radio GEO payload for the Western Hemisphere

• And last but not least, the IP400 Network Project

ZR > BEACON

• Upcoming Events Countdown

• Forgotten Internet: Giving (Or Getting) The Finger

• DigiPi Compatibility with the All In One Cable (AIOC) Interface

• Followup on Zero Retries 0186 - Thought Experiment - Integrating Personal Radio Science Projects

• WiFi Retromodem for USRobotics Sportster

• 5 GHz from Espressif: The ESP32-C5

• Bouncing Signals Off Of Satellites Other Than The Moon

• How To Install The Software-Defined Radio (SDR) Inspired Linux Lubuntu Distro Called “DragonOS_Focal” Onto An Old Windows 10 Laptop

Zero Retries Boilerplate

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

February 2025

Zero Retries 0188 - 2025-02-07

Request To Send

• A Delightful Hour Spent

• The Firehose (as in Attempting to Drink From) - dPMR (Digital Private Mobile Radio)

• First Bellingham Snowmageddon 2025

The Coming 21st Century Amateur Radio Networking Revolution

Reality Check on Updating FCC Regulations for Amateur Radio VHF / UHF

• Next Steps to Remove Symbol Rate Limits and Bandwidth Limits from US VHF / UHF Bands

• Implications for IP400 Network Project Development in the US

ZR > BEACON

• Breaking News - New Kenwood TM-750A Mobile Radio Shown at Hamcation 2025

• Upcoming Events Countdown

• Revision of the IP400 Network Project Raspberry Pi HAT

• RadioMail 1.5 - The “Robust Packet Radio” Release

• LiNK500 TNC

• WA8LMF “TNC Test CD” RE-Released!

• New Serialized Novel by KE9V

• FOSDEM 2025 - HAMNET - Status Update

• Other FOSDEM 2025 Radio (Track) Presentations

• RepeaterSTART Smartphone App Displays Repeaters on a Map

• Module17 And OpenRTX Modifications (Part 1)

• Understanding Reticulum

• Nominations Requested for Amateur Radio Technical Awards

• All In One Cable (AIOC) Supported by Next Release of DigiPi

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0189 - 2025-02-14

Request To Send

• 2500 Email Subscribers to Zero Retries!

• Paid Subscribers Update

• In the Queue for a New Hamshack Hotline Extension

• The Ascendance of Digital Technology in Amateur Radio

What’s New at Digital Library of Amateur Radio & Communications — February 2025

Explaining the Use Case for Data Over Repeater - Part 4

• QO-100 - Hemispheric SuperPeater

• SuperPeater and IP400 Network Project - Significant, But Not Total Overlap

• Reasons to Develop a SuperPeater Network

• Dynamic Interoperation Between SuperPeaters

• Advancing the State of the Art in VHF / UHF Repeaters

• Use Our Amateur Radio Spectrum or Lose Our Amateur Radio Spectrum

• Conclusion, and Future Rollup Article

ZR > BEACON

• Upcoming Events Countdown

• Hamshack Hotline Needs Your Help

• Build RADIO Networks; we TRIED (and it’s time to try again)

• AREDN Production Release 3.25.2.0

• 44Net Email and Web Page Hosting Offered

• Open LTE on Amateur Radio Bands?

• Discussion About Whether Digital Voice is Data, or is it Voice?

• ARDC and 44Net Discussed on Ham Radio Workbench Podcast

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0190 - 2025-02-21

Request To Send

• Paid Subscribers Update

• Hamshack Hotline Extension 6103420

• Nice Mention in Amateur Radio Weekly 369

• Utah Digital Communications Conference This Weekend

• Returning to Shorts Season

Update on M17 Foundation Activities

• Direct Donations to M17 Foundation Now Available

• M17 Foundation / Project Status Update

• M17 Conference 2025

AREDN Updates

• Introducing a New Network Protocol

• New Experimental Radio Modes and SSID

• Greater Use of 44Net Addresses in AREDN

ZR > BEACON

• Upcoming Events Countdown

• ESPARGOS: ESP32-based Wi-Fi Sensing Array (YouTube)

• Testimony for Yaesu FTM-6000R as a (Higher Speed) Data Radio

• Russia Is Hijacking US Military Satellites (YouTube)

• Current Active AMSAT Engineering Projects

• Open Source D-Star using Codec 2

• Linux’s Sole Wireless/WiFi Driver Maintainer Is Stepping Down

The Firehose

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0191 - 2025-02-28

Request To Send

• Paid Subscribers Update

• Announcing the Zero Retries Store!

• Hamshack Hotline Isn’t the Only Amateur Radio VOIP Service

• Heat - It’s a Good Thing

Why Hasn’t Anyone Tried to Develop Something Like IP400 Sooner?

Amateur Radio Over Different “Radio” Mediums

ZR > BEACON

• DigiPi Version 1.9-3

• Bald Yak, Universe 10, How Does All Fit Together?

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

March 2025

Zero Retries 0192 - 2025-03-07

Request To Send

• Paid Subscribers Update

• Bias Towards the Future

• The Annual Trek to Puyallup

• HamSCI 2025

IP400 Update - 2025-03-07

• IP400 Network Project Abstract

• Background on the IP400 Network Project

• Inspiration for the IP400 Network Project

• Key Differences of IP400 Network System Versus Previous Data Communications Systems

• Overall Goals of the IP400 Network Project

• Stretch Goals of the IP400 Network Project

• Supporting the IP400 Network Project

IP400 Network Project Frequently Asked Questions v1.1

Trends I Hope to See in 2025 (and Beyond) - Part 2

• Lack of an Amateur Radio Software Defined VHF / UHF Transceiver

• DigiPi Gets Wider Acceptance

• ka9q-radio / ka9q-web Gets Wider Acceptance

• Deathwatch of Stagnant Organizations

• A Noticeable Tipping Point in Demographics of Amateur Radio

• Open Content In Amateur Radio Media

ZR > BEACON

• Machine Learning And FreeDV

• What Is Vibe Coding? How Creators Can Build Software Without Writing Code

• inovato is Back - With a New Quadra4K

• Talented Radio Technology Engineer Available for Hire

• Other Networks Book Now Available for Pre-order

• MeshCore

• [FCC] to Explore Alternatives to [GNSS] Systems

• Ohio Packet Wiki

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0193 - 2025-03-14

Request To Send

• Paid Subscribers Update

• Light Week For News

• Ephemera from Puyallup

• Store and Forward Podcast Episode 11

• Any Zero Retries Readers Members of Radio Club of America?

Breaking News - From FCC - IN RE: DELETE, DELETE, DELETE

GNU Radio Conference 2025 in Everett, Washington, USA

What’s New at Digital Library of Amateur Radio & Communications — March 2025

• Editor’s Postscript

Update on Oahu (Hawaii) Network of Multi-band APRS Digipeaters

• Editor’s Note

The Threat to the US 902-928 MHz (33 cm) Band from NextNav

• [FCC] to Explore Alternatives to [GNSS] Systems

• FCC Public Notice - Wireless Telecommunications Bureau and Office of Engineering and Technology Seek Comment on NextNav Petition For Rulemaking

• ARRL and Meshtastic Publicize the Fight to Save 902-928 MHz

• FCC Docket 24-240 Deadline for Comments is Thursday 2024-09-05

• Backgrounder on Commenting on FCC Docket 24-240

  • Primary things to know about FCC Docket 24-240

  • What the FCC Wants to Hear About (Cares About)

  • Attacking NextNav Won’t Make an Impact With the FCC

• Comments of Steven K. Stroh Regarding FCC Docket 24-240

  • Abstract

  • Background

  • Comments on Amateur Radio Usage of 902-928 MHz

  • If 902-928 MHz Is Reconfigured Per NextNav’s Request, a Unique Spectrum Ecosystem Will Be Severely Impacted

  • 902-928 MHz Fills the Role of a De Facto Citizen’s Data Radio Service

  • The Subtle Role of 902-928 MHz in Addressing the “Spectrum Workforce” Shortage

  • Is NextNav’s Proprietary Technology Worth “Sacrificing” the Flourishing Spectrum Ecosystem of 902-928 MHz?

  • PNT Services

  • Broadcast Positioning Service - BPS

  • eLORAN

  • Inertial Navigation Systems - INS

  • Rubidium Atomic Timebases

  • “5G” Spectrum

  • CBRS - 150 MHz of “5G” Spectrum

  • Wi-Fi 6E (6 GHz) - More Than 1 GHz of “5G” Spectrum

  • Galileo - Robust GNSS Services

  • In Conclusion

  • Managing the Radio Spectrum for the Broadest Possible Public Interest

  • NextNav’s Proposed Reconfiguration of 902-928 MHz is Not In the Broadest Possible Public Interest

• Reply Comments on FCC Docket 24-240 Due on Friday 2024-09-20

• Background on my FCC Docket 24-240 Reply Comments

• Last Possible Moment Reply Comment?

• A Few Good Comments on FCC Docket 24-240

  • Analogy - the 2.4 GHz Band is Also “Underutilized”

  • The Power Players In the 902-928 MHz Band

  • The non Power Players in the 902-928 MHz Band - Meshtastic and Amateur Radio

  • Drinking from a Firehose - Too Many Comments to Process

  • Individual Responses

  • Preparation for the Next Spectrum Assault

• Reply Comments of Steven K. Stroh Regarding FCC Docket 24-240

  • Abstract

  • Background

  • 902-928 MHz Has Become the Starting Point of Personal Experimentation and Self Training in Radio Technology

  • Growing the Spectrum Workforce

  • Strategic Objective 4.1 | Attract, train, and grow the current and next-generation spectrum workforce.

  • Strategic Objective 4.2 | Improve policymakers’ understanding of spectrum considerations.

  • Strategic Objective 4.3 | Improve the public’s understanding of radio frequency spectrum and raise awareness of its role in everyday life.

  • In Conclusion

  • Managing the Radio Spectrum for the Broadest Possible Public Interest

• My FCC Docket 24-240 Reply Comments Filed

• Rough Week… Leading to a Rough Rest of Decade

ZR > BEACON

• M17Web: Listen to M17 Reflector Traffic in your Browser

• Two New Books on Software Defined Radio

• Chasing RFI Waves Series

• Voice of the Mesh Podcast

• Director of Radio Solutions at Stealth Startup

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0194 - 2025-03-21

Request To Send

• Paid Subscribers Update

• 2600 Email Subscribers to Zero Retries!

• Tina KD7WSF and I at HamSCI 2025

• One of the Better Moments of HamSCI 2025 - Meetup with Steve Davidson K3FZT

Impressions of HamSCI 2025

From FCC - IN RE: DELETE, DELETE, DELETE

• The ARRL Steps Up a Bit More Than Usual

• The Zero Retries Perspective on Commenting to the FCC re: Amateur Radio In The 21st Century

• Zero Retries Videoconferences

ZR > BEACON

• Web Based decoders for horus and wenet

• Introducing rpi-image-gen: build highly customised Raspberry Pi software images

• SDRBERRY - This User Interface Is Just GORGEOUS! AND IT USES SOAPY TOO!

• Winlink Express, VarAC, and VARA Modem on a Raspberry Pi 5

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0195 - 2025-03-28

Request To Send

• Paid Subscribers Update

• Gratitude for Paid Subscriptions

• New Comments Record in Zero Retries 0194

• Updated Events Page

IP400 Software v1.0 Released

Write for The SARC Communicator

ZR > BEACON

• Last Few VE7DXW RF Seismograph Boards Available

• Excerpts from ARDC 2024 Annual Report

• TIDRADIO H3 5W Multi Band Portable Radio

• FOSDEM 2025 video on Hamnet Now Available

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

April 2025

Zero Retries 0196 - 2025-04-04

Request To Send

• Another Long Zero Retries Week

• zBitx Can Be Ordered!

Announcing Zero Retries Digital Conference 2025

Frank Brickle AB2KT is a Silent Keyboard

ZR > BEACON

• National Amateur Radio Alliance

• HamSCI Meteor Scatter QSO Party 2025

• M17 Foundation Request for Additional Donations

• FCC Filing for 219 -220 MHz Band Rules Changes from ORI

• A Simple, Low-Cost Cross-Band, Digital ATV Repeater

• New SDR Radios From China. Take a breath -- you are in for an information overload

• Building A Complete VHF TO Microwave Multi-Mode Ham Radio Transceiver Using Langstone V3 - Part 1

• Appalachian Trail Golden Packet Event is 2025-07-19

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0197 - 2025-04-12

Request To Send

• It Was Another Week…

• Kind of a Plan for Migrating Zero Retries

• Hamvention 2025, Ho!

My Comments to FCC on GN Docket 25-133

• What Comes Next in GN Docket 25-133

ZR > BEACON

• VarAC V11

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0198 - 2025-04-18

Request To Send

• Welcome to Zero Retries, Amateur Radio Newsline Fans!

• Paid Subscribers Update

• Recent Mentions of Zero Retries Digital Conference 2025

• Disseminated!

• Turtle Mode?

• N8GNJ Presentation for Jim Fisher Memorial Digital Network Association (JFMDNA)

• N8GNJ SEA-PAC Seminar - Technical Innovation Within Amateur Radio

• Credit Where Due - “Seattle” Inspirations for IP400

• Discourse vs…

• Thanks to Joe Hamelin W7COM

IP400 Update 2025-04-18

Software Defined Radio is THE Imperative for US Amateur Radio

• My New Perspective - SDR Technology is the Imperative for US Amateur Radio

• Software Defined Radio is Disruptive Technology

• Amateur Radio = Citizens Experimental Radio Service

• K3NG’s “Inconvenient Reality”

• IP400 and Software Defined Radio

Some Selected Comments from FCC Docket GN 25-133

• Things I could have done better, and neglected to mention in my GN 25-133 comments

• A smattering of interesting and relevant comments

• Some other interesting comments not related to Amateur Radio

• Some themes I observed

• Archiving 25-133 Comments into DLARC for Posterity

ZR > BEACON

• APRS Summit 2025 - APRS Foundation’s First-Ever Education Summit!

• AREDN Release Candidate Available

• A Vision for Open Innovation: ARDC’s Strategy at a Glance

• KrakenSDR Community & Web Mapper Updates

• WEB-888 vs RX-888 + PC for FT8 skimming

• ALFA Tube-AH 802.11ah Outdoor Radio

• Interesting Article re: AI and Radio Technology

• Video - RADE - Machine Learning for Speech over HF Radio (AREG March 2025 Presentation)

• Video - Update: Simple Packet BBS Server Deployment (Quickly Deploy a BBS)

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0199 - 2025-04-25

Request To Send

• Paid Subscribers Update

• 2700 Zero Retries Email Subscribers!

• Remember that Reply Comments on FCC GN 25-133 are due Monday, 2025-04-28

• Presentations Are A Muscle (Practiced Skill)

• Phasing in a new Email Address for Zero Retries

• LinuxFest Northwest This Weekend

• Request for Zero Retries Readers Who Are Also Involved with GNU Radio Development

• My First Column Submitted For The Communicator

Jim Fisher Memorial Digital Network Association Webinar - IP400 and the Digital Future of Amateur Radio

Problems Reported with Early HF Signals zBitx Units

ZR > BEACON

• New 6m-20m, 6-band Hen-Delta DX Antenna R&D Project

• Need a High Power Rig for Your DigiPi?

• XetaWave - Vendor of Made In USA 217-222 MHz Data Radios

• Connecting the Dots: Protecting and Improving Amateur Radio Access to 219-220 MHz

• Using Direwolf to Emulate a Host Mode TNC?

• Streaming Video via HF

• Good Story About DigiKey Amidst Tariff Chaos

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

May 2025

Zero Retries 0200 - 2025-05-02

Request To Send

• Paid Subscribers Update

• 200 (+) Issues of Zero Retries

• Zero Retries Digest?

• My FCC GN Docket 25-133 Reply Comments Submitted

• Store and Forward Episode 12 — Big Plans

What’s New With Digital Library of Amateur Radio & Communications — May 2025

IP400 Ichiban - The Big Reveal

• Details of IP400 Ichiban

• Applications

• Legal for development, testing, and use in US

• Public Demonstration at Hamvention 2025

• Availability of development units

• Availability of production units

• Support

• Future / Next Steps

• Suggested labeling for experimental use of IP400 Ichiban

Zero Retries Digital Conference 2025 Update 2025-05-02

• Zero Retries Digital Conference 2025 Call For Papers

• Announcing the Zero Retries Digital Conference (ZRDC) Email List

LinuxFest Northwest 2025

ZR > BEACON

• The Communicator May / June 2025 Issue

• T-Mobile Starlink Beta About to Commence

• Being an Amateur Without Either Radio or Antenna

• uConsole and RTL-SDR/LoRa/GPS/RTC USB Hub

• USB Tuning Knob for Software Defined Radio

• Tigertronics BayPac BP-2M MultiMode Radio Modem on eBay

• Reintroducing the [Apache Labs] ANAN-10E

• Introducing Project mini-shack

• Matt Ettus (N2MJI) - Director of Radio Solutions at Stealth Startup

• CAP’N CRUNCH - KK7YQS

• Put an Old-School BBS on Meshtastic Radio; Microsocial Media Comes to LoRa

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0201 - 2025-05-09

• Request To Send

  • Paid Subscribers Update

  • Zero Retries Digital Conference 2025 Update 2025-05-09

  • Hamvention 2025!

  • Nice IP400 Mention in Amateur Radio Weekly

  • Another Zero Retries Interesting and “M17 Interesting” Issue of Random Wire Review Newsletter

• Amateur Radio Isn’t Having All The (Radio) Fun

  • Receive Only - Space

  • Receive Only - Terrestrial

  • Transmitting

  • Transmit and receive

  • General experimentation with radio technology

  • IP900

• New Types of New Amateur Radio Operators… and Their Expectations

  • Transactional

  • Software and Open Source is Primary

  • Internet Native; Internet is Just Another Utility

  • Data Primary, Voice if Necessary

  • More Interested in VHF / UHF than HF

  • Mistaken and Managed Expectations

  • Walled Gardens and Paywalls Versus Open Access

  • Software First, Hardware Second, and Cheaper Is Better

• ZR > BEACON

  • SDR++ with Digital Speech Decoder (Florida Man Edition!)

  • Are Multi-Carrier Data Modes Illegal in Amateur Radio?

  • Langstone (V2) VHF / UHF Software Defined Radio Project

  • Meshtastic Publishes Special Firmware for Hamvention 2025

  • AREDN Production Release 3.25.5.0

• Comments Summary From Previous Issue

• Zero Retries Boilerplate

• Permission for Reuse of Zero Retries Content

• Footnotes for this Issue

• Comments for This Issue (redirect to Comments page)

  ---

Zero Retries 0202 - 2025-05-16

Request To Send

• Unexpected Conversations 1

• Video Field Recording

Hamvention 2025, Briefly

ZR > BEACON

• Getting Started with Ham Radio on Raspberry Pi

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0203 - 2025-05-23

Request To Send

• Paid Subscribers Update

• Really Nice Mention of Me, Zero Retries, and IP400

• Whither (the Cost of) Hamvention?

• SEA-PAC Next Weekend

Hamvention 2025 - Zero Retries Impressions

• Pre Hamvention - Micro Center

• Media At Hamvention

• Name Badge Recommendation - The SignMan of Baton Rouge

• Overall Hamvention 2025

• FlexRadio Aurora

• FreeDV Radio Autoencoder (RADE)

• Rhizomatica Mercury Radio Modem Software

• Kenwood TM-D750A Mobile “Data” Radio

• Timebot (aka, Virtual Time Nut)

• MMDVM / Zum Radio

• Amateur Radio Digital Communications (ARDC)

• HF Signals zBitx

• QRP Labs QDX

• Digirig Mobile and Lite Units

• BridgeCom Systems BCM-220

• Meshtastic at Hamvention 2025

• Amateur Radio on the International Space Station (ARISS)

• Libre Space Foundation SatNOGS

• Halibut Electronics EggNOGS

• Youth On The Air (YOTA)

• AREDN

• Turn Island Systems WSPRSONDE

• AMSAT

• No Sees…

• Voice of America Museum

• Takeaways / Bigger Picture

In Person Debut of IP400 Network Project at Hamvention 2025

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0204 - 2025-05-30

Request To Send

• Paid Subscribers Update

• 2800 Email Subscribers!

• Honourable Member of Alberta Digital Radio Communications Society (ADRCS)

• Store & Forward Episode 13

• T-Mobile Holds Up

• I Owe M17 Project (and Now, Foundation) a Book. Soon.

• Update on IP400 Next Issue and Orders In Progress

A Few Last Zero Retries Impressions of Hamvention 2025

• Hamvention 2025 Via Video

• Continuous Glucose Monitor Lost Communication

• Cellular (at least T-Mobile) Held Up

• M17 Interest… But No Presence

• Kenwood TM-D750A Flat Audio Connection

• Update on Buying a BridgeCom Systems BCM-220

ARDC Priority Areas for Funding - R&D

ZR > BEACON

• The Importance of Internet-connected Systems for Amateur Radio Community and Connections

• M17 Conference 2025 – Talks and Stands

• futureGEO Workshop Scheduled for September 19th, 2025

• Western Colorado Data Repeater

• New Development Work Underway on JS8Call

• ALOHAnet: the Dawn of the Wireless Computing Age

• Australia Over The Horizon RADAR (OHR) to be Deployed in Canada

• ComJoT Radios CJ - 1UV Open Source Android DMR Dual Band Radio

• Decibels are Ridiculous

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

June 2025

Zero Retries 0205 - 2025-06-06

Request To Send

• Paid Subscribers Update

• Still a Bit Travel Lagged

• No Update on IP400 Network Project This Week

• Seminar at SEA-PAC 2025 - Technological Innovation in Amateur Radio

• What a World It Would Be…

Raspberry Pi 5 Porch Ops

Minor Scoop About FlexRadio’s Impressive Engineering

Thorough Explanation of Single Frequency Digital Mobile Radio Repeater

ZR > BEACON

• KC9XG is Now Windowless

• Data Repeaters - Just Regular, Duplex, FM Repeaters But Used for Data-Over-FM… Right?

• Hot Iron #129 is Posted to the Website

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0206 - 2025-06-13

Request To Send

• Too Long For Email?

• Zero Retries Will Publish on Substack Through Late 2025

• Better, Cheaper, Smaller, More Cost Effective, and More Efficient Ways To Communicate

• Weekends Are For Amateur Radio!

What’s New at Digital Library of Amateur Radio & Communications — June 2025
Kay Savetz K6KJN

M17 - N8GNJ’s Perspective as of June 2025
Steve Stroh N8GNJ

• Bruce Perens K6BP Informal M17 Status Report

• M17 Foundation is Still New

• Cryptographic Signatures of M17 Transmissions

• One Fundamental Difference, Two Potential Vulnerabilities

• M17 in “The Chasm”

• M17’s Bright Future in Amateur Radio

Followup On Single Frequency Repeaters
Steve Stroh N8GNJ

• Perhaps a History of Digital Voice and the Rise of Dual Time Slot DMR Repeaters

• Time Domain Duplex (TDD) Single Frequency Repeaters (SFRs)

• In the Bigger Picture, Why Encourage a Proliferation of Single Frequency Repeaters?

• “Radio Machine Learning”

ZR > BEACON

• Alberta Digital Radio Communications Society Press Release

• Jeff Geerling, Geerling Engineering, and Level 2 Jeff [YouTube Channels]

• APRS Foundation “State of the Foundation” Zoom Call on June 22nd @ 1900 (7PM) EST

• Mention of Raspberry Pi Compute Module 4 (CM4) in FlexRadio Units Wasn’t Meant to Imply “Hackable”

• SteppIR to Discontinue Amateur Radio Sales

• HAM RADIO Job Market Shows Career Opportunities

• Zero Retries Guide to Zero Retries Interesting Events Updated

• New Starlink Performance Kit

• Reasonably Priced Uninterruptible Power Supply, including USB and 12 Volts Outputs

• Sorcerer - Building a Nervous System for the Atmosphere

• Development, the American Way

• Single Pair Ethernet (SPE)

• Packet Commander - The Terminal App for AX.25 Packet Radio on iOS

• VP-Digi - APRS Digipeater Controller with Built-in KISS Modem

• Skyroof: New Ham Satellite Tracking And SDR Receiver Software

• Radio Apocalypse: Meteor Burst Communications

• RTL-SDR Blog V3/V4 USB-C Model Released For Sale

• Detect Radio Jammers with Raspberry Pi 5

• Why [Connect Systems Is] Improving the DMR in the CS7000 M17 PLUS

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0207 - 2025-06-20

Request To Send

• Paid Subscribers Update

• Directory of Independent Open Amateur Radio Technical Media

• UALR Callsign Server is Back!

• New Edition of FreePascal From Square One

• Weekends Are For Amateur Radio!

The TPRFN Network: Could be a Lifeline in Times of Emergency

Oh, The Signals You’ll Make

Amateur Radio’s Lack of Imagination About Repeater Technology

• Time Division Duplex (TDD) Single Frequency Repeater (SFR)

• Retevis Ailunce H1 DMR Radio

The Wisdom of Seth Godin

ZR > BEACON

• APRS101.pdf is Obsolete

• Father’s Day Down the Rabbit Hole (Weather Radiosondes)

• TE Systems RF Power Amplifiers for Amateur Radio

• Rig Support for 9600 BAUD Packet

• ARRL Teachers Institute – Multiplying the Message

• Random Serendipity (Universal Radio Hacker)

• QRP Labs Implemented Polar Modulation

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0208 - 2025-06-27

Request To Send

• Paid Subscribers Update

• Weekends Are For Amateur Radio! Ham Holiday Weekend in Europe and the US

ZRDC 2025 Registration Now Open

AST SpaceMobile Lays Claim to 430-440 MHz and 902-928 MHz for Commercial Satellite Communications in FCC Filing

• FCC Accepting Comments Through 2025-07-21, Reply Comments Through 2025-08-05

• Additional Coverage of This Story

Details About Data Over DMR

2025 June - State of the APRS Foundation (YouTube)

• Newly “Elected” APRSF Directors (see slide at 7:09)

• Contacting APRS Foundation With Your Input

• Consolidating the Many “Variants” of APRS Specifications

ZR > BEACON

• Update on “Available for Amateur Radio” Power Amplifiers

• QRadioLink - Multimode Software Defined Transceiver Application

• HackRF Pro Announced (Pre-purchase)

• Checking in on the Universal Radio Test Instrument (URTI) Project

• TETRA Supports Single Frequency Repeater Mode

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

July 2025

Zero Retries 0209 - 2025-07-04

Request To Send

• Paid Subscribers Update

• Next Week, Zero Retries 0210 Begins Zero Retries Fifth Year

• Updated Directory of Independent Open Amateur Radio Technical Media

• Happy Independence Day USA

• Happy Canada Day

• Weekends Are For Amateur Radio!

VARA FM - 12.5 kHz Bandwidth Versus 25 kHz Bandwidth

• My query to NS7C

• NS7C’s Response

• N7SC’s Test Platform

• N7SC’s Test Results - Two Tait TM8200s

• N7SC’s Test Results - TM8200 and TH-F6A

• NS7C’s Conclusions

• N8GNJ’s Response

• Conclusions

Jim Boddie NG2J - Silent Keyboard

ZR > BEACON

• Alberta Digital Radio Communications Society (ADRCS) Press Release re: IP400

  • Related: Project Status as of June 30th, 2025

  • Related: Hardware

• Surrey Amateur Radio Communications (SARC) The Communicator, July / August 2025

• Radio Module 2 and DreamHAT+ - Unusual Radio Modules

• HydraSDR RFOne - New Software Defined Receiver

• My Portable Packet Radio Test Box (video)

• OpenWrt ampr-ripd package

• Seeed Studios reRouter

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0210 - 2025-07-11

Request To Send

• Paid Subscribers Update

• The Zero Retries Virtual Intern - ChatGPT Plus

• Zero Retries Store - Last Chance - COMCO 814 PORTACOM Radio (2 units)

• Weekends Are For Amateur Radio!

Zero Retries Enters Its Fifth Year

What’s New at Digital Library of Amateur Radio & Communications — Packet Radio History

Comment Period Open for Ten More Days re: AST SpaceMobile Claiming 430-440 MHz For Its Use

Year Five of the Zero Retries Experiment In Progress

• Zero Retries Plays For “Those Five”

• Amateur Radio VHF / UHF Bands “Sharing” Will Continue

• Amateur Radio Needs New Organizations

ZR > BEACON

• Hamshack Hotline Public Announcement – A Fond Farewell

• Twitter Co-founder Jack Dorsey’s New Messaging App Works Without the Internet

• VarAC V12 is here!

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0211 - 2025-07-18

Request To Send

• Paid Subscribers Update

• Comment Period Open for Three More Days re: AST SpaceMobile Claiming 430-440 MHz For Its Use - Last Day is Monday 2025-07-21

• Bets on Steadily Improving Technology Are Generally Good Bets

• Ham Radio Workbench Podcast Episode 242

• Single Topic Issue of Zero Retries This Week

• Weekends Are For Amateur Radio!

MMDVM “Versus” M17

• Disclaimer - I’m a Fan of Both G4KLX / MMDVM and SP5WWP / M17

• Background Information on MMDVM Versus M17

• My Synopsis of the MMDVM Versus M17 Situation

• How We Got To This Point

• M17’s Alleged Deficiencies, Compared to Other Digital Voice Systems… Isn’t a Valid Comparison

• The Aftermath of G4KLX’s Decision to Remove Support for M17 from His MMDVM Software

• The Long Term Fallout of G4KLX’s Decision to Remove Support for M17 from His MMDVM Software

• The Path Forward for M17 and MMDVM

• The Long Term Future… and Evolution… of M17

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0212 - 2025-07-25

Request To Send

• Paid Subscribers Update

• This Past Week…

• Kudos to ARRL For Showing Up During FCC Comment Periods

• Comments From Groups, Even Informal Groups

• Open Sauce 2025 (and 2026)

• Weekends Are For Amateur Radio!

ZRDC 2025 Update 07/25/2025

We Showed Up for Comments on FCC SB Docket 25-201

• Reply Comments on FCC Docket SB 25-201 Due 2025-08-05

M17 Community Moves Past Mainstream MMDVM Support

• Moving On

• Recovery - The WPSD M17 Community Fork

• Moving Ahead

• N7TAE mspot

• Exciting Things to Come - LinHT (Formerly, OpenHT) and CC1200 M17 Hotspot

ZR > BEACON

• Open Communications Organization (AM CELL)

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Comments for This Issue (redirect to Comments page)

---

August 2025

Zero Retries 0213 - 2025-08-01

Request To Send

• Paid Subscribers Update

• 3000+ Zero Retries Email Subscribers!

• Ham Radio Workbench Episode 242

• The OpenAI ChatGPT Plus Virtual Intern Has Been Fired

• Zero Retries Guide to Submitting Federal Communications Commission (FCC) Comments and Reply Comments

• FCC SB Docket No. 25-201 Reply Comments Due by Tuesday 2025-08-05

• Weekends Are For Amateur Radio!

ZRDC 2025 Update 08/01/2025

• ZRDC 2025 Initial Speaker / Topic Lineup

• ZRDC 2025 Door Prizes

• Hospitality

• Links:

Notes From The M17verse

• My Personal Perspective on Why M17 is The Most Interesting Amateur Radio VHF / UHF Digital Voice Mode

• Case In Point - Experimentation and Evolution in M17

• “M17 No More”… Sigh…

• News From Connect Systems About CS M17 Radios

• M17 Related Conference Reminders

ZR > BEACON

• 12 Million Observations for the SatNOGS Network!

• If You Build It, They Will Come! Packet Radio Repeater Email Node BBS (video)

• SF-HAB Represented Amateur Radio at Open Sauce 2025

• AREDN Release Candidate Includes Support for 802.11ah Devices

• It’s More Than Just The Tech: Lessons Learned in Funding R&D

• HamTV is Active on the International Space Station

• GPS on the Fritz? Britain and France Plot a Backup Plan

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0214 - 2025-08-08

Request To Send

• Paid Subscribers Update

• Three New Zero Retries Pseudostaffers Named

• Zero Retries Gets a Cameo in Ham Radio 2.0 Video

• Some Weeks, the Technological Innovation in Amateur Radio Just Gobsmacks Me

• My Reply Comments to FCC SB Docket No. 25-201 Submitted (On Time!)

• Alternative Scenario - AST Space Mobile Hosts an Amateur Radio Payload?

• Weekends Are For Amateur Radio!

ZRDC 2025 Update - 08/08/2025

• Registration

• Hospitality

• Door Prizes

• Conference Links

Meshtastic at Open Sauce 2025

Additional Details on 802.11ah Device Support in Latest AREDN Release Candidate Software

1.5 New NinoTNC Derivatives

• SMT NinoTNC Available Again

• matchbox NinoTNC

ZR > BEACON

• ARDC Has Updated Their 2025 Grants List, and a Report From ARDC Grant Evaluation Team (GET)

• Starlink Beam Switching Upgrade Improves Reliability for Obstructed Dishes

• Decoding Meshtastic with GNURadio on a Raspberry Pi

• Hamshack Hotline Users Invited to Apply for Services at Hams Over IP

• vARIM Messaging Program

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0215 - 2025-08-15

Request To Send

• Paid Subscribers Update

• 3100 Email Subscribers (100+ in One Week)

• N8GNJ Now a Member of the M17 Foundation Advisory Committee

• Zero Retries Interesting Calendar for 2026 is Already Filling Up

• Weekends Are For Amateur Radio!

Zero Retries Digital Conference 2025 Update - 8/15/2025

• Registration

• Hospitality

• Sponsors

• Door Prizes

• Conference Links

What’s New at Digital Library of Amateur Radio & Communications — August 2025

LinHT - Technological Innovation In Amateur Radio

A Modest Proposal

Thought Experiment - The Amateur Radio Future Systems Skunkworks

Thought Experiment About Mesh Networking

• Hard Lessons Learned - What Not To Do

• Meshtastic Is Rediscovering Lessons (Already Learned) of Amateur Radio Data Networking

• Common Point of Failure with Most Radio-based Mesh Networking

• ka9q-radio - “Receive It All”

• KA9Q Comments

• In Conclusion…

ZR > BEACON

• AMSAT-CA Quietly Comes to Life

• Brief Report from AREDN Team at DEFCON 2025

• CQ Digital Connection Columnist Don Rotolo N2IRZ “Returns” to “Print”

• New Features Being Put in CS7000 M17 GPS and CS7000 M17 PLUS Radios

• Candidate for US Congress Focuses on Issues Related to Amateur Radio

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0216 - 2025-08-22

Request To Send

• Paid Subscribers Update

• Substack Internal Links Aren’t Working

• LinHT Progresses

• Weekends Are For Amateur Radio!

Zero Retries Digital Conference 2025 Update - 8/22/2025

• ONE DAY PASS FOR ZERO RETRIES ATTENDEES AT GRCon 2025!

• Discount code: ZERORETRIESDISCOUNT

• REGISTRATION

• LINKS

• ZRDC SPONSORS

Three Brief Articles on LinHT

• First LinHT Tests

• LinHT – Open SDR Handheld for Radio Amateurs

• Demo LinHT M17 Decode

ZR > BEACON

• ARRL Technical Awards

• PACKRAT - Intro and Five Part Series, and hz.tools - Tutorial on Software Defined Radio by K3XEC

• patty AX.25 stack (for POSIX-like OS)

• July / August 2025 ARDC News

• IPv6 /48 Subnets for Radio Amateurs

• amprv6.org

• JNOS 2.0q

• SF-HAB High-Altitude Balloon Launch #5

• Turn Any Android Device Into A Full VHF Radio - KV4P Version 2 - NEW!

• AREDN Development Plans 2025

• MMDVM.com 2025-08 Update

• Does Amateur Radio Need a DEFCON?

• Open Letter from AMSAT-SM Regarding Development of a Full Duplex Handheld

• AllStarLink Appeal For Donations

• Opulent Voice End-to-End Working

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0217 - 2025-08-29

Request To Send

• Paid Subscribers Update

• Have you ever had an idea so spectacularly dumb…

• Amateur Radio Technological Innovation In the Pacific Northwest

• Substack Internal Links (Still) Aren’t Working

• Weekends Are For Amateur Radio!

Zero Retries Digital Conference 2025 Update - 8/29/2025
Tina Stroh KD7WSF

KK7NQN Transcriber Service Node – Now Open to Any AllStar User
Hunter Inman KK7NQN

• Editor’s Note

• How It Started

• Images

• Editor’s Afterword

Build It And They Will Come Doesn’t Generally Work (In Amateur Radio In 2025)
Steve Stroh N8GNJ

• Repurpose an FM Repeater

• The Technology Is A Lot Better in 2025

• Evangelize The New Network

• Build Up Loaner Systems

• Different Audience, Including Non-Hams

• Building New Amateur Radio Networks Is Possible

ZR > BEACON

• Maty Weinberg KB1EIB is Retiring From ARRL

• Trials and Errors #64 (8/24/25): Tech-Focused Hams -- A Shot Across the Bow to ICOM, Yaesu and More

• Meshcore Repeater Deployed In Surrey, British Columbia, Canada

• Low Drive Level 420-450 MHz and 220-225 MHz Power Amplifiers Available From KH6HTV

• Future Icom ID-5200 Shown at Ham Fair 2025

• Updates on ka9q-radio and Rig Expert Fobos Wideband SDR Receiver

• Spectrum Analyzer now in CS7000 M17 GPS and CS7000 M17 PLUS Radios

• Packet Commander: Now with 100% More Monitoring Magic!

• DB0UV - a Worldwide Unique VHF / UHF Transponder

• LiNK500: The Ultimate Interface for Digital Ham Radio

• MHE 9600 TNC - High-Speed Automatic TNC

• M17 Specification Revision 2.0 Release

• Real-Time Beamforming With Software-Defined Radio

• RadioSport SDR App

• The PicoFox Saga

• T41-EP SDT - Modular, Open Source, HF Software Defined Transceiver

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (Redirect to This Issue’s Comments Page)

---

September 2025

Zero Retries 0218 - 2025-09-05

Request To Send

• Paid Subscribers Update

• 3200 Zero Retries Email Subscribers

• Busy Busy Busy

• ZRDC 2025 - 8 Days!

• And Then, More Work Begins

• Brittle Systems

• The Communicator - September / October 2025 Edition

• Weekends Are For Amateur Radio!

Zero Retries Digital Conference 2025 Update - 9/5/2025

• THE DEADLINE IS TONIGHT!

• DOOR PRIZES

• VIRTUAL ATTENDANCE

• GRCon 2025

M17 Conference Is This Weekend

Amateur Radio Activities At GRCon 2025 Next Week

Zero Retries Interesting AllScan.info Products

• AllScan URI101

• AllScan URI141

• AllScan URI110

ZR > BEACON

• Experimental Radio News 13

• NASA Seeks Volunteers to Track Artemis II Mission

• AllStar Revisited Series

• Bald Yak 12, Getting Raw Data From a Remote Receiver

• Installing a Permanent Remote HF Station on Frying Pan Tower in the Atlantic Ocean

• Free ebook - Signal Processing Recipes for Communication Systems

• ARRL Lab Helps Radio Amateurs Avoid Interfering With US Space Force Radar

• RADE Compared to SSB With Reducing TX Power Levels

• Mooneer’s FreeDV Update – August 2025

• AREDN® Network Beginner’s Guide - for the Absolute Newbie

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords For This Issue

Footnotes For This Issue

Comments for This Issue (redirect to Comments page)

---

Zero Retries 0219 - 2025-09-12

Request To Send

• Paid Subscribers Update

• Severely Abbreviated Issue

Observations from GNU Radio Conference 2025 - Tersely

• Amateur Radio is Widely Known in GNU Radio

• GNU Radio is (Now) Foundational to Any / All Radio Technology Development

• New GNU Radio - 4.0

• LinHT

• 4 NewTechHams from GRCon 2025

• Meeting of the GNU Radio Hams

• Maybe (Probably) Bigger Amateur Radio Presence at GRCon 2026

• GRCon / Amateur Radio Mic Drop Moment

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (Redirect to This Issue’s Comments Page)

---

Zero Retries 0220 - 2025-09-19

Request To Send

• Paid Subscribers Update

• Busy September 2025!

• ZRDC 2025 Recovery Mode

• Pacificon 2025 - Ho!

• Weekends Are For Amateur Radio!

Zero Retries Digital Conference 2025 Wrap Up

Zero Retries Digital Conference 2025 Debrief - Part 1

• Presaging ZRDC 2025 - GRCon 2025

• The Big Picture of ZRDC 2025

• The Hidden Heroes of ZRDC 2025

• Papers Submitted for ZRDC 2025

• My ZRDC 2025 Keynote - Technological Innovation In Amateur Radio

• KK7NQN Transcriber Service Node

• Earth Moon Earth - With Software Defined Radio

• Amateur Radio’s Virtual Universal Library - DLARC

• Hailing Channel for Packet Radio

• ARDC 44Net VPN

• IP400 Networking Project

• AREDN Microwave Networking

• Optimizing Wide Band Receiver Performance

• M17 - Open Source Digital Voice

• Door Prizes

• The After Conference Pizza Party (Reception)

• The ZRDC 2025 Video…

• A Few Lessons Learned

• ZRDC 2026?

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (Redirect to This Issue’s Comments page)

---

Zero Retries 0221 - 2025-09-26

Request To Send

• Paid Subscribers Update

• Weekends Are For Amateur Radio!

What’s New at DLARC — September 2025
Kay Savetz K6KJN

Voice Over Packet (VOP)
Don Rotolo N2IRZ

The Software Based Future of Amateur Radio
Steve Stroh N8GNJ

ZR > BEACON

• Polar Modulation - It’s a Big Deal

• (CentyLab) PocketPD is now live on CrowdSupply!

• Rhizomatica at Hamvention 2025

• A Deep Dive into the Digital Data Function of the Icom IC-9700

• Connect Systems CS-7000 M17 Radios - M17 Experimental Firmware Release

• LinHT – First GRF5604 RF Amplifier Tests

• Raspberry Pi 500+ - The Evolved Raspberry Pi 500

• ARDC is Recruiting Volunteers for 2026 Committees

• Bridgecom Systems BCR-220 Repeaters On Sale for $600 thru 2025-09-30

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (Redirect to This Issue’s Comments page)

---

October 2025

Zero Retries 0222 - 2025-10-03

Request To Send

• Paid Subscribers Update

• Seven NewTechHams from GRCon 2025!

• Mourning Typepad

• Great Minds…

• Still Working on ZRDC 2025 Archives

• Weekends Are For Amateur Radio!

VHF-UHF Packet Path Predictions
Don Rotolo N2IRZ

Why Should You Consider Joining The TPRFN Network
Glenn Allison N3MEL

• Editor’s Note

• 1. Enhanced Emergency Communications (EMCOMMs)

• 2. Digital Traffic Capability and Diversity

• 3. Training and Skill Development

• 4. Expansion and Community

IP400-users - A New Independent Email Support Group for IP400 Network Project
Steve Stroh N8GNJ

How To Get (Re) Started In Amateur Radio Data Communications
Steve Stroh N8GNJ

• What Not To Do - Legacy 1200 bps AFSK Packet Radio, Digipeaters, and Radios With Built in TNCs

• QO-100 - Amateur Radio Payload in Geosynchronous Orbit Above the Eastern Hemisphere

• Most Modern Amateur Radio Data Communications Experience - AREDN

• New Packet Radio

• VARA HF, VARA FM, and VarAC

• Modern Amateur Radio Packet Radio

  • KISS

  • Faster Data Speeds

  • Forward Error Correction

  • Terrestrial Amateur Packet Radio Network - TARPN

  • Dire Wolf Software TNC

  • JNOS - Swiss Army knife of Packet Radio Routing

  • BBS

  • NinoTNC

  • TNC4

  • DigiPi

  • WINTNC

ZR > BEACON

• The Wow@Home Radio Telescope

• STARS-Me2 CubeSat Data Communications Experiment

• ARDC Kicks off YouTube Channel with 44Net Origin Story

• The DARPA Packet Radio Network Protocols

• GRF5604 RF amplifier boards are now available at PCBWay

• Review: futureGEO Workshop 2025 in Bochum

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Comments for This Issue (Redirect to This Issue’s Comments page)

---

Zero Retries 0223 - 2025-10-10

Request To Send

• Paid Subscribers Update

• The Serenity Prayer for Amateur Radio

• Weekends Are For Amateur Radio! Conferences - Like Pacificon 2025

Why Manufacturers May Be Reluctant About VHF / UHF / Microwave SDR “Real Radios”
Steve Stroh N8GNJ

VARA FM Via FM (Analog) Repeater
Steve Stroh N8GNJ and Scott Currie NS7C

• Testing A Dedicated VARA FM Repeater

• Terrain Challenges

• Summary

ZR > BEACON

• University of Pennsylvania Amateur Radio Club Wireless Luncheon

• FCC FACT SHEET In re: Delete, Delete, Delete - Direct Final Rule – GN Docket No. 25-133

• Help Track Our Light Sail! - Setting Up a Ground Station for the Cornell Alpha Mission

• Video - HackRF Portapack Evolved? This is PortaRF

• Dire Wolf Version 1.8 Beta Test

• Jesse Alexander WB2IFS - Keynote at GNU Radio Conference 2025

• OpenRTX 0.4.2 Released

• PocketPD Update: Announcing a New Version for Drone & Ham Radio Operators

• open.space

• Harald Welte joins ARDC’s Board of Directors

• Documentary Explores Collins Radio’s Role in Creation of the Internet

• Hush - An Open Source Alternative to VARA-HF

• Video - MeshCore Presentation by Liam Cottle

• Video - Ukraine’s New Jam-resistant Battlefield Radios Signal Soldier-led Revolution

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (Redirect to This Issue’s Comments page)

---

Zero Retries 0224 - 2025-10-17

Request To Send

• Paid Subscribers Update

• Welcome New Zero Retries Readers / Fans from Pacificon 2025

• Zero Retries Digest Redux

• In the Service of Being More Readable, Short Shrift Issue

• Weekends Are For Amateur Radio!

Pacificon 2025 - Great Conference!

• The Zero Retries Table

• open.space

• Meshtastic

• AREDN

• MMDVM

• Ed’s Antennas - Quickly Sold Out

• Professor Bruce Perens K6BP

• Drone Scan 3D

  • Post Publication Update

• Elecraft Sponsored Susan Wood Demonstrating (Hand) Surface Mount Soldering

• Pacificon 2025 Flea Market

• Again, Thanks!

MORE Technological Innovation In Amateur Radio

Amateur Radio is Missing the SDR “Forest” by Focusing on the Legacy “Trees”

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (Redirect to This Issue’s Comments page)

---

Zero Retries 0225 - 2025-10-25

Request To Send

• Paid Subscribers Update

• Thank You, Readers, for the Thoughts on the (Not Excessive) Length and Detail of Zero Retries

• Western Washington University Develops Electrical and Computer Engineering Department

• Weekends Are For Amateur Radio!

What’s New at Digital Library of Amateur Radio & Communications — October 2025
Kay Savetz K6KJN

• Editor’s Postscript

The (Amateur Radio) World Has Changed For Me
Steve Stroh N8GNJ

• LinHT - Linux (and GNU Radio) Handie Talkie (Handheld Radio)

• GNU Radio Conference 2025

• Exponentially Improving Radio Technology in Ukraine

Followup on How to Get (Re) Started in Amateur Radio Data Communications
Ben Kuhn KU0HN

• Editor’s Note

• Vero Telecom VR-N76

• Flat Audio!

• Buying From a Reliable Source

• Using the VR-N76

• Other Features of G8BPQ BBS

ZR > BEACON

• Accessing the TAPR Annual Membership Meeting

• An Update on FreeDV’s Baseband FM (BBFM) Technology

• Direction Finding (Bunny / Transmitter Hunting) in 2025

• DEF CON 33 Videos (including RF Village) Are Live

• How to Get Started With Outreach

• OpenMesh Voice Network

• Why Mesh Networks Break When Big Crowds Gather

• Next ARDC Grant Tranche is 2026-02-01

• EASY Packet Radio Interface from KM9G! SMS, Email, BBS, Network

• DigiPi 2.0 Released!

• LinHT Is The Cover Story of the CQ DL 2025-11 Issue

  • Post Publication Update

• RepeaterBook is Here for You....Now and into the Future

• Raspberry Pi Unveils the $18 Compute Module 0 — But Only for Chinese Customers, for Now

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Comments for This Issue (Redirect to This Issue’s Comments page)

---

Zero Retries 0226 - 2025-10-31

Request To Send

• Paid Subscribers Update

• Radio Technology is Evolving Fast, Especially Open Source

• FreeDV “Oughta” Have a Data Option

• Happy Halloween (Treat!) - ZRDC 2025 Material Now Available

• Weekends Are For Amateur Radio!

Full Article by the LinHT Developers:

LinHT: An Open-source SDR Handheld Radio for Amateur Radio Operators

MESHCON 2025 is a Wakeup Call to Amateur Radio for Relevance With Techies Interested in Radio Technology

• Why Does This Exponentially Improving Success of Meshtastic, etc. Matter?

• To use Meshtastic on 902-928 MHz as unlicensed… “just go have fun”

Test Bench In A (Handheld) Box

My New 2025 Standby Battery Power System

• Background on my 12 Volt Power System

• The Bioenno Power BLF-1240A

• West Mountain Radio Epic PWRgate

• The Most Puzzling, Frustrating Aspect - the Two Connectors on the BLF-1240A Aren’t Documented

• Power Budgeting

• Add a West Mountain Radio PWRcheck+?

• Don’t Charge LiFePO4 Batteries < 0° C

• Wrapping Up…

ZR > BEACON

• direwolf Release 1.8 Now Available

• IP400 (and More) News from ADRCS 2025-10 Newsletter

• Thought Experiment - Could OpenGD77 or MMDVM Be Configured for Single Channel or Four Timeslots DMR?

• 44Net VPN Status Update

• Introducing the Next Generation of AllScan USB Radio Interfaces

• Surrey Amateur Radio Communications The Communicator Newsletterzine - November December 2025 Issue

• FutureGEO Workshop Memo

• SDR-Hub: A New RTL-SDR Scanner and Audio Recorder with Web Interface

• Trials & Errors #67 (10/10/25): Defending the Spectrum

• Pacificon 2025 Overview

• MMDVM 2025-10 Update

• Announcing The 2025 Hackaday Superconference Communicator Badge

• Explaining the Mesh! - MESHCON 2025: Daniel Susca Opening

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (Redirect to This Issue’s Comments page)

November 2025

Zero Retries 0227 - 2025-11-07

Request To Send

• Paid Subscribers Update

• Substack Newsletters Internal Links Seem to be Working Again

• Nice Mention of Zero Retries Article in Amateur Radio Newsline

• AnySignal - Any… Signal…

• Building Up “Static” Articles for Easier Reference

• Features Versus Products

• Weekends Are For Amateur Radio!

Starlink Made Me An Offer I Couldn’t Refuse

Renewed My ARRL Membership

A Remarkable Amateur Radio Presentation - LinHT at OpenAlt 2025 by Vlastimil Slinták OK5VAS

• Amateur Radio of the 21st Century

• LinHT Development Needs Financial Support

Retreating from Repurposing Existing Repeaters

• Mesh Networking Is “Repeaters of the 21st Century”

ZR > BEACON

• Brief Update on KK7NQN Transcriber Service Node

• Introducing the Stixs Radio

• FSF Announces Librephone Project

• FreakWAN

• Matchbox APRS

• W1BTR Big Time Radio - Radio Programming Services

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (Redirect to This Issue’s Comments page)

---

Zero Retries 0228 - 2025-11-14

Request To Send

• Paid Subscribers Update

• 3300 Email Subscribers This Past Week!

• ARRL 2024 Annual Report

• No Comments This Issue

• Weekends Are For Amateur Radio!

Making the Most of the 44Net Cloud

• Why 44Net Matters to Today’s Ham

• What Is the 44Net Cloud?

• My Use Case

• More Use Cases for Hams

• Security First – Don’t Skip Past These Suggestions

• Conclusion

In Defense of ARDC and its Grant Funding / Process

• Background on MMDVM Grants from ARDC

• Addressing the Ongoing Criticism on the “Legitimacy” of ARDC’s Endowment

• How ARDC Operates Its Grants

• Paid Professional Technical Labor

• Big Money Distorts, and Stifling Open Innovation?

• In Conclusion

ZR > BEACON

• Utah Digital Communications Conference 2026 - Call For Proposals

• GNU Radio Conference 2026

• Ham66 Low Cost Digital Amateur Radio Television Low Cost Receivers for W6CX ATV Repeater

• M17 Specification Release 3.0.0 – Draft

• Inovato Closing Permanently - 2025-12-19

• Alan Johnston, KU2Y, Presents CubeSat Simulator 2025 Updates

• New Zero Retries Interesting Amateur Radio Satellites

• FreeDV RADE Receiver for (Web) Software Defined Receivers

• RADE V1 - First Known Real-world Deployment of a Neural Codec

• OpenMANET - Mobile Ad-Hoc Network

• RX/TX [Audio Interface / Dire Wolf] Dongle Choices

• VA7ZEB Line of Sight (LOS) Web App

• Save the Date: Annual ARRL YouTube Telethon to Support Teachers Institute

• Ham Rocket Men - Launch DVB-T Transmitter

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

---

Zero Retries 0229 - 2025-11-21

Request To Send

• Paid Subscribers Update

• Zero Retries is the only ham radio periodical I read

• Presentation to Mount Diablo Amateur Radio Club tonight (2025-11-21) at 19:00

• Wayne Technical Fanatics

• Evangelism for Amateur Radio of the 21st Century

• Starlink Mini - Wow!

• Penguins and LinHT Manufacturers - No One Wants to go First

• Another Hilariously… Ridiculously Long “Newsletter” This Week

• Credit Where Due - Guillaume F4HDK Patiently Created and Nurtured a GoodGreat Idea - With Open Source

• Credit Where Due - ARDC Grants Can Really Work

• Weekends Are For Amateur Radio!

(Breaking!) Plug and Play New Packet Radio Units Available from Localino… Including for 2 Meters!

• OK5VAS - The New Packet Radio

• Other New Packet Radio Variants

• Then It Really Got Interesting

• These are built-for-purpose higher speed data radios!

• Pushing the Boundaries of US Part 97

The Piling On and Misinformation About ARDC Continues

The 44Net Story - Q5 Worldwide Ham Radio Interview - Inside ARDC: Bdale KB0G on Funding the Future of Ham Radio

• Bdale’s ham radio background

• The beginnings of ARDC

• The early hams

• The evolution of ARDC

• Grant review vetting approval process

• Grant categories

• Success and failure

• Shifting priorities

• The future of ham radio

• Visionaries

• Scaling

N8GNJ’s Takeaways from the W1DED / KB0G Interview - DreamNet and GEO

• DreamNet

• Arguably, DreamNet is Operating in Europe

• DreamNet in North America - Work in Progress / Recovery

• GEO Capability for Western Hemisphere

Thought Experiment on the Linux Mobile Transceiver

ZR > BEACON

• (Breaking!) LinHT – a Complete M17 Transceiver (Finally!)

• Opinion: futureGEO is the Most Important Amateur Radio Initiative of this Decade. Why is no one Talking About it?

• ARDC 2024 Audited 990-PF (Tax Return) & Financial Statements

• FreeDV v2.1.0 Released

• Update on HF Signals zBitx HF Software Defined Radio

• VGC BHM-88 Firmware Update

• HaLow_Scanner: An RTL-SDR Based 802.11Ah HaLow Channel Scanner

• The Final Fate of the TAPR Tangerine SDR Project

• Origin Story of Phased Array Antenna Technology (video)

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (Redirect to This Issue’s Comments page)

---

Zero Retries 0230 - 2025-11-28

Request To Send

• Paid Subscribers Update

• Young People Aren’t Interested in Amateur Radio

• Spotted in Passing…

• Mount Diablo Amateur Radio Club Presentation

• Weekends Are For Amateur Radio!

More Thoughts on a new (Western Hemisphere?) Amateur Radio GEO

• Use Millimeter Wave Bands?

• No Significant Provisions for Data?

• We Probably Don’t Have a Decade

• Half Measures for Some Interesting Amateur Radio GEO Applications?

ZR > BEACON

• 29 MHz DATV

• Looking for Beta Testers – Secure Node-RED Access Without a VPN

• VARA Digipeater Setup and Testing (video)

• EvoHam.com Is Live – And We’re Just Getting Started

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (Redirect to This Issue’s Comments page)

December 2025

Zero Retries 0231 - 2025-12-05

Request To Send

• Paid Subscribers Update

• Zero Retries Administrivia Bulletin

• Amateur Radio (In the 21st Century) Elevator Pitch

• Zero Retries Interesting Amateur Radio Clubs - Sci-Tech Amateur Radio Society (STARS)

• Whither IP400?

• Weekends Are For Amateur Radio!

Battery Backup Power Basics

Some Zero Retries Interesting Trends For 2026

• Linux Handheld Transceiver (LinHT)

• New Packet Radio for 2m, 70cm, and 23cm Bands

• AREDN Local Area Networks / Extensions on 902-928 MHz Using 802.11ah / Wi-Fi HaLow

• NewTechHams as an Increasingly Visible, and Influential Bloc Within Amateur Radio

• An FCC Petition for Rulemaking for Deletion of VHF / UHF Bandwidth Limits and Symbol Rates

• Interesting Projects to Follow in 2026

  • GTDATA

  • RADE Over Baseband FM (BBFM)

  • ka9q-radio

  • Movement towards an Amateur Radio Geosynchronous Earth Orbit payload

ZR > BEACON

• HamSCI Meteor Scatter Experiments 2025-12-12 and 13

• Pycom Radio Controller

• Unofficial IETF draft calls for grant of five nonillion IPv6 addresses to ham radio operators

• Hot Iron #131 November 2025 Now Available

• Amateur Radio Handheld Radio as a modular option of a new electric car

• Remote Receivers

• MySat Kit, your first personal satellite

• ClubExpress - All-in-One Management for Clubs and Associations

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Keywords for this Issue

Footnotes for this Issue

Comments for This Issue (Redirect to This Issue’s Comments page)

---

Zero Retries 0232 - 2025-12-12

Request To Send

• Paid Subscribers Update

• Big… Overflowing… Issue of Zero Retries

• Weekends Are For Amateur Radio!

Zero Retries Email List

• Why Set Up a Zero Retries Email List?

• An Email List? On the Cusp of 2026?

• Why Not the Substack Comments System?

• Priority of Onboarding Participants

• Floodgates Open - Briefly

• Article Tagging

• The List Sounds Interesting, But I’d Rather Not Subscribe

What’s New at Digital Library of Amateur Radio & Communications — December 2025

📡 The TPRFN Connection: December 2025 Newsletter

• Happy Holidays from The Packet Radio RF Forwarding Network!

• 🌐 Network Update: Crossing the Digital Divide

• 📈 November PKTNET Check-in Results

• 📈 2026 TPRFN Projects!

• 🚨 Call to Action: Seeking New Hub Stations!

• 🛠️ Tech Corner: BPQ Node Security and Maintenance

• 🗓️ December Events: Practice Makes Perfect

• 🤝 Happy Holidays and 73!

Zero Retries YouTube Channel Is Live

• ZRDC 2025 Conference Videos

• Future Zero Retries Videos, Including Zero Retries Intro to… Series

44Net Connect is Live!

FCC Allocates 60-Meter World-Wide Amateur Band Approved at WRC-15; Continues Amateur Use of Four Additional 60-Meter Channels…

Zero Retries Guide to Amateur Radio HF Data Communications

ZR > BEACON

• Random Wire Newsletter Announces EtherHam Website

• ARRL to Host 2026 HamSCI Workshop at Central Connecticut State University

• K1VL SDR - Now With Over 36 [Web SDR] Receivers

• Remarkably Zero Retries Interesting Issue of ARRL QST - 2026-01

  • OpenTNC Project - Pretty Cool

• Discussion About New Packet Radio (NPR)

• Somebody asked about people’s ‘unusual hobbies’ – 21 bizarre ways to use up your free time

Comments Summary From Previous Issue

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

---

Zero Retries 0233 - 2025-12-31

Request To Send

• Paid Subscribers Update

• 3400 Email Subscribers!

• Apologies For Publication Confusion

• zeroretries.radio

• The Zero Retries Email List

• The Zero Retries YouTube Channel

• Synergy of Video Presentations, Zero Retries Guides, and the Zero Retries Book

• Coming Attractions in 2026

• Handy Tip - Use RSS to Monitor Groups.io Email Lists

• Best of Zero Retries 2025

• (Likely) No Zero Retries on Friday 2026-01-09

• Weekends (and Holidays) Are For Amateur Radio!

ZR > BEACON

• Introducing 44Net Connect: A Simpler Way to Access 44Net

• UberSDR - Open Source Web Based HF SDR

• Electronic Technicians Association International

• Pending ARRL Book - Digital Networking for Ham Radio

• Ham Radio Workbench Podcast 252 - AllStar ROIP Linking with David NR9V from AllScan

• DreamHat+ 60 GHz RADAR Hat For Raspberry Pi

• Pocket Pico / Pico TNC Project

• Codec 2 Optimized For Smaller Memory and Faster Execution

• When You Hear “APRS”, Do You Think “2 meter FM”???

• Is LoRa (Long Range) Technology Magic?

• Federated Amateur Radio Packet Network Wiki

• Let’s Encrypt Certificates Now Available for IP Addresses Without Domain Names

• Amateur Radio Can Be Relevant to Entry Level Job Seeking

• The RadioBuilder Radio Lab For Builders

• AI Data Centers Demand More Than Copper Can Deliver

Zero Retries Boilerplate

Permission for Reuse of Zero Retries Content

Footnotes for this Issue

Zero Retries Index 2026

end